Tony, I have put a request into Crownhill asking for some technical documentation and will do some investigations of my own. If possible, It would be nice to have a design that didn't require other hardware to be present in the QL, besides the obligatory glue.
As for the driver, I don't know the current hard disk drivers in any detail, but at some point I assume they must make an IO call to get/set a specific sector or block (or range of sectors/blocks), so that's where I would start looking for opportunities to reuse the existing code. I suppose the ideal situation might be that there are USBWiz commands to read and store a numbered logical block. Then you *might* be able replace the code in the existing drivers that communicates with the ATA controller, with some glue code that communicates with the USBWiz instead. That has to be a starting point. I know I'm greatly over-simplifying things here, and probably talking bollocks, but it seems possible to me. In any event, it's an interesting discussion to have. Adrian --- On Wednesday, October 28, 2009, 4:26:10 PM, you wrote: TF> Adrian D. Ives wrote, On 28/10/09 12:54: >> Or, better still, maybe the USBwiz-OEM : >> >> http://www.crownhill.co.uk/product.php?prod=1459 >> >> >> TF> This overlapped with my email. TF> They have on-board drivers for some USB devices, accessible by AT style TF> commands. TF> I haven't actually delved deeper to see what is feasible. TF> Certainly access to the SD card is, from what I read. TF> Tony _______________________________________________ QL-Users Mailing List http://www.q-v-d.demon.co.uk/smsqe.htm
